Powermax65/85 Power Switch rePlacement
8Field Service Bulletin
Install the new power switch (CSA model)
1. Connect the wires to the auxiliary switch on top of the new power switch. Connect the red wire to the side marked
13 and the black wire to the side marked 14. Tighten the screws to 10 in-lbs (11.5 kg cm).
2. Connect the power wires to the top of the new power switch. Connect the wires to the proper terminals in the same
order as you removed them. Tighten the screws to 20 in-lbs (23 kg cm). Refer to the figures below.
3. Connect the power wires to the bottom of the new power switch. Connect the wires to the proper terminals in
the same order as you removed them. For 1-PH, connect the short wire to T1, and the long wire to T2. For 3-PH,
connect the short wire to T1, the medium wire to T2, and the long wire to T3. Tighten the screws to 20 in-lbs (23 kg
cm).
4. Carefully pull the top of the rear panel away from the power supply.
5. Slide the power switch into the power supply. You will need to maneuver the power switch around the right edge of
the power board. Be sure not to damage any components.
6. Push the power switch post through the hole in the rear panel.
7. On the fan side of the power supply, reconnect the gas supply tube to the air filter. Push the tube into the push-to-
connect tube connector.
8. Carefully push the rear panel against the power supply.
9. Replace the metal end panel bracket located on top of the center panel. Align the slot in the bracket with the plastic
tab on the front panel and push the pins into the holes on the end panels.
1-phase CSA 3-phase CSA
L1
L2
Ground (GND)
L1 Black
Black
White
White
Red
GreenGreen
L2
L3
Ground (GND)
L1
L2
L1
L2 L3
